Single-Handle Dual-Control Thermostatic Valve and Single-Handle Dual-Control Thermostatic Faucet

ABSTRACT

For the single-handle dual-control thermostatic valve and the faucet, a hot water incoming channel, a hot water outgoing channel, a cold water incoming channel and a cold water outgoing channel are provided in the valve core body respectively. A static ceramic chip is provided above the valve core body in the valve jacket, a dynamic ceramic chip is provided on the static ceramic chip. On the static ceramic chip, a hot water inlet passage, a hot water outlet passage a cold water inlet passage and a cold water outlet passage are provided separately, the hot water inlet passage, the hot water outlet passage, the cold water inlet passage and the cold water outlet passage are connected correspondingly with the hot water incoming channel, the hot water outgoing channel, the cold water incoming channel and the cold water outgoing channel of the valve core body respectively. On the dynamic ceramic chip, a hot water controlling channel and a cold water controlling channel are provided. The hot water controlling channel can open or shut off both the hot water inlet passage and the hot water outlet passage on the static ceramic chip, and the cold water controlling channel can open or shut off both the cold water inlet passage and the cold water outlet passage on the static ceramic chip. The dynamic ceramic chip in the present invention does not change the flow of hot water and cold water into the regulator during its rotation, the hot incoming water and the cold incoming water can be opened or shut off by the sliding dynamic ceramic chip so as to regulate the water flow.

BACKGROUND

1. Technical Field

The present invention relates to the technical field of plumbingequipment, and, especially to the thermostatic valve used in athermostatic faucet and the single-handle dual-control thermostaticfaucet.

2. Background Art

The thermostatic faucet is popular among the consumers due to itsconvenience in water temperature regulation and has been widely appliedin various types of bathwater supply systems of various occasions.Constant temperature mainly means that a user can self-regulate thewater outlet temperature according to his/her needs and the mixed waterfrom outlet can keep a constant temperature upon setting. The advantageof the thermostatic faucet is that, it is safe and burn-proof, thetremendous change in the outgoing water temperature can be avoided,which is caused by the change in water incoming pressure or the instablewater incoming temperature occurred in the ordinary valve core.

As a key part of the thermostatic faucet, the thermostatic valve'sfunction and structure determine directly those of the thermostaticfaucet and further the user's experience, including the convenience inuse and completeness in function. For the single-handle thermostaticfaucet available now, by operating its single handle, only the wateroutgoing temperature can be set and the water outlet's switching on/offcan be controlled, and the water outgoing flow can not be regulatedfreely and the user's higher expectation in use can not be metaccordingly.

SUMMARY

The present invention is designed to provide a single-handledual-control thermostatic valve with optimized structure of the valvecore body and increased flow in the valve body and a single-handledual-control thermostatic faucet in which the thermostatic valve isprovided.

For that purpose, the following technical solution is adopted in thepresent invention:

A single-handle dual-control thermostatic valve comprises a valve corebody, a valve jacket hermetically-connected with the upper part of thevalve core body; and a valve seat located at the bottom of the valvecore body, wherein the valve core body and the valve seat forms a spacefor accommodating a temperature regulating part and a water mixing zone;a flow part and a control part is provided in the valve jacket, whilethe upper end of the driving lever of the control part extends upwardsout of the valve jacket; a hot water incoming channel, a cold waterincoming channel, a hot water outgoing channel and a cold water outgoingchannel are provided separately in the valve core body, and the hotwater incoming channel and the cold water incoming channel penetratesthrough the valve core body; the valve core body has a hot water inletwhich connects with the hot water outgoing channel and the water mixingzone and a cold water inlet which connects with the cold water outgoingchannel and the water mixing zone, and the hot water inlet and the coldwater inlet are located at the positions with different heights in thevalve core body; a static ceramic chip having a hot water inlet passage,a hot water outlet passage a cold water inlet passage and a cold wateroutlet passage is provided above the valve core body in the valvejacket, a dynamic ceramic chip having a hot water controlling channeland a cold water controlling channel is provided on the static ceramicchip, the dynamic ceramic chip is connected with the control part andcan rotate and translate by the control part, wherein the hot waterinlet passage, the hot water outlet passage, the cold water inletpassage and the cold water outlet passage are connected correspondinglywith the hot water incoming channel, the hot water outgoing channel, thecold water incoming channel and the cold water outgoing channel of thevalve core body respectively, the hot water controlling channel can openor shut off both the hot water inlet passage and the hot water outletpassage on the static ceramic chip, and the cold water controllingchannel can open or shut off both the cold water inlet passage and thecold water outlet passage on the static ceramic chip; a mixed wateroutlet is located on the valve seat and connected with the water mixingzone.

More specific technical solution for the single-handle dual-controlthermostatic valve in the present invention is as follows:

the temperature regulating part comprises a temperature regulating valvestem, a temperature regulating valve stem seat, a thermo-sensitiveelement, a regulator and a return spring, wherein a hole for thetemperature regulating valve stem is provided at the top of the valvecore body and the temperature regulating valve stem seat is fixed to theinternal wall of the temperature regulating valve stem hole, thetemperature regulating valve stem thread-fits with the temperatureregulating valve stem seat and its upper end extends upwards; theregulator including a water control portion and a supporting portion isprovided between the temperature regulating stem seat and the valveseat, and the external peripheral wall of the water control portion isagainst the internal wall of the valve core body and the supportingportion is against the bottom of the temperature-regulating valve stemseat, the upper end and lower end of the water control portion arelocated at the hot water inlet and the cold water inlet of the valvecore body respectively; a cold/hot isolation seal ring between the hotwater inlet and the cold water inlet is provided on the externalperipheral wall of the water control portion, the upper end of thethermo-sensitive element is indirectly against the valve stem by alocking spring and its lower end is indirectly against the valve seat bya return spring, the lower end and upper end of the return spring isagainst the valve seat and the regulator respectively.

More specific technical solution for the single-handle dual-controlthermostatic valve in the present invention is as follows:

the control part comprises a driving lever, a driving lever seat, adrive plate and the drive plate's driver, the driving lever seat and thedrive plate are accommodated on the upper part of the internal cavity inthe valve jacket, and the drive plate is located below the driving leverseat and connected with the dynamic ceramic chip, the outer teeth at theupper end of the temperature regulating valve stem fits with the innerteeth in the center hole of the driving lever seat, the lower part ofthe driving lever penetrates through the driving lever seat and isconnected with the lever seat by a dowel, the lower end of the drivinglever is embedded into and fixed to the driving lever driver on thedrive plate.

More specific technical solution for the single-handle dual-controlthermostatic valve in the present invention is as follows:

the hot water inlet passage of the static ceramic chip is locatedoutside of the hot water outlet passage and is longer than the latter;the cold water inlet passage is located outside of the cold water outletpassage and is longer than the latter.

More specific technical solution for the single-handle dual-controlthermostatic valve in the present invention is as follows:

the water incoming end face of the hot water incoming channel and thatof the cold water incoming channel are located on the bottom surface ofthe valve core body and are arc-shaped, the water outgoing end face ofthe hot water incoming channel, that of the cold water incoming channel,the water incoming end face of the hot water outgoing channel and thatof the cold water outgoing channel are located on the top surface of thevalve core body and are sector-shaped; and the water outgoing end faceof the hot water incoming channel, that of the cold water incomingchannel, the water incoming end face of the hot water outgoing channeland that of the cold water outgoing channel are identical in shape andsize and evenly distributed along the circumference with a certaininterval.

More specific technical solution for the single-handle dual-controlthermostatic valve in the present invention is, the water outgoing endface of the hot water incoming channel deflects 10-30° relatively toaxis X.

More specific technical solution for the single-handle dual-controlthermostatic valve in the present invention is, the included anglebetween the edge of the hot water outgoing channel and the axis X is5-15° and that between the edge of the cold water outgoing channel andthe axis X is 40-50°.

More specific technical solution for the single-handle dual-controlthermostatic valve in the present invention is: the thermo-sensitiveelement is connected with the regulator to drive the latter move, a sealring is provided between the upper end face of the water control portionof the regulator and the internal wall of the valve core body andbetween the lower end face of the water control portion and the upperend face of the valve seat, when the upper end face of the water controlportion contacts with the internal wall of the valve core body, the sealring closes the gap between the upper end face of the water controlportion and the internal wall of the valve core body; when the lower endface of the water control portion contacts with the upper end face ofthe valve seat, the seal ring closes the gap between the lower end faceof the water control portion and the upper end face of the valve seat.

More specific technical solution for the single-handle dual-controlthermostatic valve in the present invention is: the seal ring isdisposed on the upper end face and the lower end face of the watercontrol portion.

A single-handle dual-control faucet provided with the above-thesingle-handle dual-control thermostatic valve comprises a faucet shell,a thermostatic valve provided in the faucet shell, a handle whichcontrols the thermostatic valve, a cold water incoming pipe, a hot waterincoming pipe and a mixed water outgoing pipe which are connected withthe faucet shell, the handle is connected with the driving lever of thethermostatic valve.

More specific technical solution for the single-handle dual-controlthermostatic faucet in the present invention is: the cold water incomingpipe and the hot water incoming pipe form an internal control cavityrespectively, inside the control cavity, the following are provided: ahollow guiding part which is connected with the water inlet of thecontrol cavity; a piston part provided between the guiding part and thewater outgoing end of the control cavity; the internal cavity of thepiston part is connected with the internal cavity of the guiding part,and the piston part having a water drawing portion, an elastomer actionportion and the contact portion which are connected with one anothersuccessively can move axially inside the control cavity, wherein thewater drawing portion is embedded into and connected with the guidingpart, the contact portion is against the water outlet of the controlcavity and a seal ring is provided between the outer edge of theelastomer action portion and the internal wall of the control cavity, adisplacement elastomer provided between the elastomer action portion andthe guiding part; a sealing pad provided on its installing portion canchange the water route between the guiding part and the piston part.

More specific technical solution for the single-handle dual-controlthermostatic faucet in the present invention is: the sealing padinstalling portion is a support for the sealing pad provided in theconnecting portion of the water incoming pipe, and the sealing padsupport comprises a water discharge portion having water discharge holeson its peripheral wall connected with the water inlet of the controlcavity and a supporting portion provided on the water discharge portion,and the sealing pad is provided on the end face of the supportingportion; and the water drawing portion extends into the internal cavityof the guiding part, and the sealing pad is located at the waterincoming side of the water drawing portion.

More specific technical solution for the single-handle dual-controlthermostatic faucet in the present invention is: the upper end of theguiding part extends into the water drawing portion of the piston part,the installing portion for the sealing pad is provided inside thecontact portion, and the sealing pad is provided on the bottom surfaceof the installing portion of the sealing pad and is located at the wateroutgoing side of the guiding part.

It is learnt from the above-the technical proposals that a hot waterincoming channel, a cold water incoming channel, a hot water outgoingchannel and a cold water outgoing channel are provided on the valve corebody, that is, a quartered-water route structure is adopted in thepresent invention, so that the water discharge area of incoming waterand outgoing water can be increased, and the flow of the valve core canalso be increased accordingly. On the static ceramic chip, a hot waterinlet passage, a hot water outlet passage, a cold water inlet passageand a cold water outlet passage are provided respectively, and on thedynamic ceramic chip, a hot water controlling channel and a cold watercontrolling channel are provided for opening or shutting off both thewater incoming channel and the water outgoing channel. After enteringinto the ceramic chip through the water incoming channel of the valvecore body, the hot water and the cold water flow into the regulatorthrough the ceramic chip and the water outgoing channel of the valvecore body and are mixed in the water mixing zone, then the mixed waterflows out of the mixed water outlet in the seat. The dynamic ceramicchip in the present invention does not change the flow of hot water andcold water into the regulator when it is rotating, and temperature isregulated by the regulator, which is driven by the thermostatic valvestem (driven by the driving lever seat). The different sliding positionsof the dynamic ceramic chip can shut off or open the hot incoming waterand the cold incoming water, while flow can be regulated at differentpositions to which the dynamic ceramic chip slides.

BRIEF DESCRIPTION OF DRAWINGS

FIG. 1 is a structural schematic drawing of the first embodiment in thepresent invention;

FIG. 2 is a sectional view along line A-A in FIG. 1;

FIG. 3 is a structural schematic drawing of the temperature regulationpart in the first embodiment in the present invention;

FIG. 4 is a structural schematic drawing of the static ceramic chip inthe first embodiment in the present invention;

FIG. 5 is a structural schematic drawing of the dynamic ceramic chip inthe first embodiment in the present invention;

FIG. 6 is a matched schematic drawing of the dynamic ceramic chip andthe static ceramic chip when the water is shut off;

FIG. 7 is a sectional view of FIG. 6;

FIG. 8 is a matched schematic drawing of the dynamic ceramic chip andthe static ceramic chip when the water channel is open;

FIG. 9 is a sectional view of FIG. 8;

FIG. 10 is a top view of the valve core body in the first embodiment inthe present invention;

FIG. 11 is a bottom view of the valve core body in the first embodimentin the present invention;

FIG. 12 is a matched schematic drawing of the dynamic ceramic chip andthe static ceramic chip when the water channel is shut off and totalcold water remained;

FIG. 13 is a matched schematic drawing of the dynamic ceramic chip andthe static ceramic chip when the water channel is shut off and total hotwater remained;

FIG. 14 is a matched schematic drawing of the dynamic ceramic chip andthe static ceramic chip when the water channel is open and total coldwater remained;

FIG. 15 is a matched schematic drawing of the dynamic ceramic chip andthe static ceramic chip when the water channel is open and total hotwater remained;

FIG. 16 is a structural schematic drawing of the second embodiment inthe present invention;

FIG. 17 is an assembly schematic drawing of the regulator and thethermo-sensitive element in the second embodiment;

FIG. 18 is a longitudinal sectional view of the faucet in the thirdembodiment in the present invention;

FIG. 19 is a lateral sectional view of the faucet in the thirdembodiment in the present invention;

FIG. 20 is a structural schematic drawing of the piston part in thethird embodiment in the present invention;

FIG. 21 is a structural schematic drawing of the faucet in the fourthembodiment in the present invention;

FIG. 22 is a structural schematic drawing of the faucet in the fifthembodiment in the present invention.

FIG. 23 is a structural schematic drawing of the faucet in the sixthembodiment in the present invention.

The specific embodiments in the present invention are described indetails as follows with reference to the attached drawings.

DETAILED DESCRIPTION The First Embodiment

As is shown in FIG. 1 and FIG. 2, the single-handle dual-controlthermostatic valve in this embodiment comprises a thermostatic valvecore, a valve jacket, a flow part and a control part, wherein thethermostatic valve core comprises a valve core body 1, a valve seat 3and a temperature regulating part. The valve jacket 2 fits hermeticallyby a seal ring with the upper part of the valve core body 1, the valveseat 3 is provided inside the bottom of the valve core body 1, and boththe valve core body 1 and the valve seat 3 form an area foraccommodating the temperature regulating part and a water mixing zone.With reference to FIG. 3, the temperature regulating part comprises atemperature regulating valve stem 4, a temperature regulating valve stemseat 5, a thermo-sensitive element 10, a regulator 11 and a returnspring 14. As a preferred embodiment for the present invention, thetemperature regulating part further includes a trim lever 15, an ejectorpin 16, a locking spring 17, a buffering spring 18, a cold/hot waterisolation seal ring 19 and a top cap 20.

A regulating valve stem hole 1 a is drilled on the top of the valve corebody 1. The temperature regulating valve stem seat 5 is fixed to theinternal wall of the temperature regulating valve stem hole 1 a, and thetemperature regulating valve stem 4 thread-fits with the temperatureregulating valve stem seat 5 and its upper end extends upwards. A hotwater incoming channel a, a cold water incoming channel b, a hot wateroutgoing channel c and a cold water outgoing channel d are provided onthe valve core body 1 respectively. Furthermore, an axial hole isdrilled inside the temperature regulating valve stem 4, and the trimlever 15 is disposed inside the axial hole in the temperature regulatingvalve stem 4 and thread-fits with the internal wall of the axial hole.An axial hole is drilled inside the trim lever 15, the top cap 20 isscrewed on the top of the axial hole inside the trim lever 15. The upperend of the ejector pin 16 is provided in the axial hole inside the trimlever 15, and a buffering spring 18 is provided between the top cap 20and the ejector pin 16 and the lower end of the ejector pin 16 extendsdownwards out of the trim lever 15. A locking spring 17 is providedbetween the trim lever 15 and the bottom inside the temperatureregulating valve stem 4. A regulator 11 is provided between thetemperature regulating valve stem seat 5 and the valve seat 3, includinga water control portion 11-1 and a supporting portion 11-2. The externalperipheral wall of the water control portion 11-1 is against theinternal wall of the valve core body 1, and the supporting portion 11-2is against the bottom of the temperature regulating valve stem seat 5.The upper end and the lower end of the water control portion 11-1 arelocated respectively at both the hot water inlet 1 b and the cold waterinlet 1 c in the valve core body 1. The hot water inlet 1 b and the coldwater inlet 1 c are located at different heights of the valve core body1. When the regulator 11 moves upwards or downwards, the opening degreeof the hot water inlet 1 b and the cold water inlet 1 c can becontrolled. A hot/cold water isolation seal ring 19 is provided on theexternal peripheral wall of the water control portion 11-1 and islocated between the hot water inlet 1 b and the cold water inlet 1 c.The upper end of the thermo-sensitive element 10 is indirectly againstthe ejector pin 16 by the locking spring 17 and its lower end isindirectly against the valve seat 3 by the return spring 14. The lowerend of the return spring 14 is against the valve seat 3 and its upperend is against the regulator 11 to push the regulator 11 downwards whenupward acting force by the push rod of the thermo-sensitive element 10becomes smaller.

An assembly internal cavity is provided inside the valve jacket 2, and adriving lever seat 7, a dynamic ceramic chip 8, a static ceramic chip 9and a drive plate 12 are provided respectively inside the assemblyinternal cavity of the valve jacket 2. The flow part in the presentinvention comprises a dynamic ceramic chip 8 and a static ceramic chip 9provided inside the valve jacket 2. The static ceramic chip 9 isdisposed above the valve core body 1 and the dynamic ceramic chip 8 isdisposed above the static ceramic chip 9. The control part in thepresent invention comprises a driving lever 6, a driving lever seat 7, adrive plate 12 and a drive plate driver 13, and preferably, alubrication piece 22 is provided between the driving lever seat 7 andthe valve jacket 2.

The driving lever seat 7 and the drive plate 12 are accommodated in theupper part of the internal cavity inside the valve jacket 2. A centerhole is drilled in the driving lever seat 7, and the outer teeth at theupper end of the temperature regulating valve stem 4 fit with the innerteeth of the center hole in the driving lever seat 7. The lower part ofthe driving lever 6 penetrates through the center hole in the drivinglever seat 7 and is connected with the driving lever seat 7 by a dowel21, and the lower end of the driving lever 6 is embedded into the driveplate driver 13 which is fixed to the drive plate 12. The drive platedriver 13 is connected with the drive plate 12, and the driving lever 6can either swing around the dowel 21 inside the driving lever seat 7, ordrive the plate 12 to rotate by the driving lever 7.

When the driving lever 6 swings, the drive plate 12 translatesaccordingly to drive the dynamic ceramic chip 8 to translate. The driveplate 12 is provided on the dynamic ceramic chip 8 and connected withthe driver of the dynamic ceramic chip 8. When the driving lever 6 ismoving, the drive plate 12 is driven to drive the dynamic ceramic chip 8to regulate the flow. When the driving lever 6 is driven, the drivinglever seat 7 can rotate to drive the temperature regulating valve stem 4rotate to regulate the temperature.

For the thermostatic valve in the preferred embodiment, the trim lever15 inside the temperature regulating valve stem 4 can be regulated toachieve trimming function during the valve core test.

The trim process and the principle are as follows: Rotate the drivinglever 31 to 38° C. position in the faucet and stay there duringtrimming, and then rotate the trim lever 15 by a wrench. Since the trimlever 15 thread-connects with the temperature regulating valve stem 4,the trim lever 15 can slide up and downwards during its rotation todrive the thermo-sensitive element 10 and the regulator 11 jog. The settemperature is aligned during regulation. In which, a locking spring 17is installed between the temperature regulating valve stem 4 and thetrim lever 15 to avoid the temperature change due to the loosened trimlever 15, so as to obtain a simpler trimming mechanism and a easier andquicker operation.

With reference to FIG. 4 and FIG. 5, a valve stem through-hole 90 isdrilled on the static ceramic chip 9, and an arc-shaped hot water inletpassage 91, an arc-shaped hot water outlet passage 92, an arc-shapedcold water inlet passage 93 and an arc-shaped cold water outlet passage94 are provided outside of the static ceramic chip valve stemthrough-hole 90. The hot water inlet passage 91 is located outside ofthe hot water outlet passage 92 and its length (arc length) is longerthan that (arc length) of the hot water outlet passage 92, and the coldwater inlet passage 93 is located outside of the cold water outletpassage 94 and its arc length is longer than that of the cold wateroutlet passage 94. As is shown in FIG. 1 and FIG. 2, the hot water inletpassage 91 is connected with the hot water incoming channel a in thevalve core body 1, the hot water outlet passage 92 is connected with thehot water outgoing channel c, the cold water inlet passage 93 isconnected with the cold water incoming channel b and the cold wateroutlet passage 94 is connected with cold water outgoing channel d. Thedynamic ceramic chip 8 is provided above the static ceramic chip 9, anda dynamic ceramic chip valve stem through-hole 80 is drilled on thedynamic ceramic chip 8. An eccentric hot water controlling channel 81and an eccentric cold water controlling channel 82 are providedperipherally of the dynamic ceramic chip valve stem through-hole 80 atthe bottom surface of the dynamic ceramic chip 8, furthermore, apressure reduction through-hole 83 is drilled in both the hot watercontrolling channel 81 and the cold water controlling channel 82. Thepressure reduction through-hole 83 provided can decrease the tensileforce acting on the ceramic chip by dynamic pressure (water flow) andseal between the dynamic ceramic chip and the static ceramic chip can beenhanced, and meanwhile, the frictional force between the dynamicceramic chip and the static ceramic chip can be decreased, so that thetouch feel during the valve core rotating can be improved.

As is shown in FIG. 6 and FIG. 7, the hot water channel shuts off whenthe hot water controlling channel 81 provided in the dynamic ceramicchip 8 is staggered from the hot water outlet passage 92 in the staticceramic chip 9, and meanwhile, the cold water channel shuts off when thecold water controlling channel 82 provided in the dynamic ceramic chip 8is staggered from the cold water inlet passage 93 in the static ceramicchip 9. As is shown in FIG. 8 and FIG. 9, when the dynamic ceramic chip8 is driven to the open position, the hot water inlet passage 91 in thestatic ceramic chip 9 is connected by the hot water controlling channel81 in the dynamic ceramic chip 8 with the hot water outlet passage 92and then the hot water channel is opened; and meanwhile, the cold waterinlet passage 93 in the static ceramic chip 9 is connected by the coldwater controlling channel 82 in the dynamic ceramic chip 8 with the coldwater outlet passage 94 and then the cold water channel is opened. Thehot water and the cold water flow into the mixed water zone respectivelythrough the hot water inlet 1 b connected with the hot water outgoingchannel c and the cold water inlet 1 c connected with the cold wateroutgoing channel d. When the cold water flows through the upper end ofthe regulator 11 into the mixed water zone and the hot water flowsthrough the lower end of the regulator 11 into the mixed water zonerespectively, the temperature sensing portion of the thermo-sensitiveelement 10 can sense the temperature change of the mixed water and itspush rod will extend or contract accordingly to drive the regulator 11jog upwards or downwards inside the valve core body 1. By the action ofthe thermo-sensitive element 10 and the return spring 14, the upper endand lower end of the water control portion 11-1 of the regulator 11 cancontrol the opening degrees of the hot water inlet 1 b and the coldwater inlet 1 c so as to control the dynamic balance between the hotincoming water and the cold incoming water and so that a constanttemperature can be maintained (The constant temperature required can beset by rotating the temperature regulating valve stem.)

After flowing respectively into the ceramic chip, the hot water and thecold water flow respectively into the regulator through the hot waterinlet 1 b and the cold water inlet 1 c, and after mixing in the watermixing zone, the mixed water flows out through the mixed water outlet 30in the valve seat 3. In the present invention, the flow of the coldwater and the hot water into the regulator will not be changed duringthe dynamic ceramic chip rotating. Temperature can be regulated in thisway, i.e. the thermostatic valve stem (which drives the regulator fortemperature regulating in turn) is driven by the drive lever seat. Thecold incoming water and the hot incoming water can be shut off or openby the sliding dynamic ceramic chip to regulate the flow.

As is shown in FIG. 10 and FIG. 11, the top view and bottom view of thevalve core body respectively. The hot water incoming channel and thecold water incoming channel penetrates through the valve core body 1separately, and the water incoming end face a1 of the hot water incomingchannel and the water incoming end face b1 of the cold water incomingchannel are located on the bottom surface of the valve core body and arearc-shaped (sector-shaped). The connection line between the midpoints oftwo arcs is taken as Axis x (the connection line between the geometricalcentre lines of two sectors). The water outgoing end face a2 of the hotwater incoming channel, the water outgoing end face b2 of the cold waterincoming channel, the water incoming end face c1 of the hot wateroutgoing channel and the water incoming end face dl of the cold wateroutgoing channel are provided respectively on the top surface of thevalve core body and are sector-shaped. The water outgoing end face a2 ofthe hot water incoming channel, the water outgoing end face b2 of thecold water incoming channel, the water incoming end face c1 of the hotwater outgoing channel and the water incoming end face dl of the coldwater outgoing channel are identical in shape and equal in size,arranged circumferentially and evenly spaced. The water outgoing endface a2 of the hot water incoming channel deflects an angle α relativelyto Axis x, which is between 10-30°. Angle α is considered as 20° in thisembodiment. A quartered-water route structure is adopted in the valvecore body so that the water discharge area of the incoming water and theoutgoing water and also the flow of the valve core can be increased.Since the position of water incoming is fixed (the positions on thewater incoming end face a1 and the water incoming end face b1) and thequartered-water route rotates between 10-30°, the workmanship for thewater incoming hole of the faucet can be improved and the waterdischarge area can be increased too. (As is shown in FIG. 11, the shadowpart is the increased water discharge area after rotating 20°).

With reference to FIG. 9, when the water outgoing end face a2 of the hotwater incoming channel deflects relatively to Axis x, the included angleA between the edge of the hot water outlet passage 92 and Axis x is 10°and the included angle B between the edge of the cold water outletpassage 94 and Axis x is 43°. The angle A can be between 5-15° and Bbetween 40-50° in the present invention. The cold/hot water outletpassage in the static ceramic chip deflects a certain angle along withthe quartered-water route in the valve core body, the valve core bodycan regulate the outgoing water in high or low temperature by regulatingthe water discharge area of the cold water and the hot water.

As is shown in FIG. 12, it is a status of water shut off and total coldwater remained. At this moment, when the hot water controlling channel81 in the dynamic ceramic chip 8 is staggered from the hot water outletpassage 92 in the static ceramic chip 9, the cold water controllingchannel 82 in the dynamic ceramic chip 8 is staggered from the coldwater inlet passage 93 in the static ceramic chip 9 so that both the hotwater channel and the cold water channel are shut off. With reference toFIG. 13, the dynamic ceramic chip 8 slides to the “on” position bydriving the drive lever. The hot water inlet passage 91 in the staticceramic chip 9 is connected with the hot water outlet passage 92 by thehot water controlling channel 81, and the cold water inlet passage 93 inthe static ceramic chip 9 is connected with the cold water outletpassage 94 by the cold water controlling channel 82, then both the hotwater channel and cold water channel are opened. Since the hot wateroutlet passage 92 deflects a certain angle, the hot water controllingchannel 81 are not opened coincidently with the hot water outlet passage92 in a status of total cold water remained, thus the discharge area ofthe hot water is less than that of the cold water and the cold waterflow is large, the water outgoing in lowest temperature can be achievedunder the condition that the area of discharge area of cold water isbiggest.

As is shown in FIG. 14, it is a status of water shut off and total hotwater remained. At this moment, when the hot water controlling channel81 in the dynamic ceramic chip 8 is staggered from the hot water outletpassage 92 in the static ceramic chip 9, the cold water controllingchannel 82 is staggered from the cold water inlet passage 93 in thestatic ceramic chip 9 so that both the hot water channel and the coldwater channel are shut off. With reference to FIG. 15, the dynamicceramic chip 8 slides to the “on” position by driving the drive lever.The hot water inlet passage 91 in the static ceramic chip 9 is connectedwith the hot water outlet passage 92 by the hot water controllingchannel 81, and the cold water inlet passage 93 in the static ceramicchip 9 is connected with the cold water outlet passage 94 by the coldwater controlling channel 82, then both the hot water channel and coldwater channel are opened. Since the cold water outlet passage 94deflects a certain angle, the cold water controlling channel 82 are notopened coincidently with the cold water outlet passage 94 in a status oftotal hot water remained, thus the discharge area of cold water is lessthan that of hot water, the hot water flow is bigger, so that the wateroutgoing of valve core body in highest temperature is achieved under thecondition of biggest discharge area of hot water.

Furthermore, in this embodiment the hot water controlling channel 81 andthe cold water controlling channel 82 are sector-shaped and both of thecentral angle is 60° so that the water flow is guaranteed in a status ofthe largest water discharge area during the dynamic ceramic chiprotating at the “switching on/off” position. The hot water controllingchannel 81 and the cold water controlling channel can be identical inshape and be different also. The hot water controlling channel and thecold water controlling channel with different shapes can be adopted tokeep the cold water incoming area equal to the hot water incoming area.Taking this embodiment for example, the distance between the hot watercontrolling channel and the centre angle is different from that betweenthe cold water controlling channel and the centre angle so that the hotwater controlling channel is of an irregular shape, that is, a sector in“H” shape approximately, to keep the cold incoming water area equal tothat of the hot incoming water.

Since the extension travel and contraction travel of thermo-sensitiveelement are caused by the temperature of hot water and cold water, andgenerally the rotation angle of the valve core of single-handledual-control thermostatic valve is 120° and the discharge area of theceramic chip is unchanged both in high or low temperature, in order tochange the discharge area both in high or low temperature, travel ofthermostatic valve core has to be increased; however, excessive travelwill eliminate the self-locking of the thread, resulting into theinability for accurate temperature-regulating. In this embodiment, thewater discharge area of hot/cold water is changed due to the position ofhigh/low temperature of the static ceramic chip so that both low/hightemperate can be regulated by the valve core with a certain travel.

The Second Embodiment

With reference to FIG. 16 and FIG. 17, the difference between thisembodiment and the first embodiment is as follows: In this embodiment,the thermo-sensitive element 10 is thread-connected with the regulator11 so that the regulator can move along with the thermo-sensitiveelement. The upper end face of the water control portion 11-1 can becontrolled to contact with the internal wall of the vale core body 1when the regulator 11 moves up to the top, and the lower end face of thewater control portion 11-1 can be controlled to contact with the upperend face of the valve seat 3 when the regulator 11 moves down to thebottom. The seal ring 11 a is provided between the upper end face of thewater control portion 11-1 and the internal walls of the valve core body1 which contacts with the upper end face of the water control portionand between the lower end face of the water control portion 11-1 and theupper end face of the valve seat 3. In this embodiment, the seal ring 11a is provided on both the upper end face and the lower end face of thewater control portion 11-1, since there is a gap between the seal ring11 a, the internal wall of valve core body and the upper end face of theseat, the hot water and the cold water can flow into the regulator.

The seal ring 11 a is provided between the upper end face of the watercontrol portion 11-1 and the internal wall of valve core body 1 andbetween the lower end face of water control portion 11-1 and the upperend face of the valve seat 3, and the seal ring is provided on the upperend face or the lower end face of the water control portion 11-1 orprovided on the internal wall of valve core body 1 or the upper end faceof valve seat 3. When the hot water is interrupted and the cold water isavailable only, the sensor of the thermo-sensitive element 10 can sensethe temperature of cold water, so that the push rod contracts to drivethe thermo-sensitive element 10 to move upwards and the regulator 11connected with the thermo-sensitive element 10 moves also upwards to thetop accordingly, thus the upper end face of the water control portion11-1 contacts with the internal wall of the valve core body 1 and theseal ring 11 a shuts off the channel for the cold water flowing into theregulator 11 to interrupt the cold water supply. When the cold water isinterrupted and the hot water is available only, the sensor of thethermo-sensitive element 10 senses the temperature of hot water, so thatthe push rod extends to drive the thermo-sensitive element to movedownwards and the regulator 11 connected with the thermo-sensitiveelement 10 moves also down to the bottom accordingly, thus the lower endface of the water control portion 11-1 contacts with the upper end faceof the valve seat 3 and the seal ring 11 a shuts off the channel for thehot water flowing into the regulator 11 to interrupt the hot watersupply, ensuring two-way safety in case of emergent extreme temperature.

The Third Embodiment

With reference to FIG. 18 and FIG. 19, the structural schematic drawingsof the faucet applying the thermostatic valve in the first embodiment.In this embodiment, the single-handle dual-control thermostatic faucetcomprises a handle 101, a faucet shell 103, a thermostatic valve 104, acold water incoming pipe 105, a hot water incoming pipe 106 and a mixedoutgoing water pipe 107. Wherein, the cold water incoming pipe 105, thehot water incoming pipe 106 and the mixed outgoing water pipe 107 areconnected with the faucet shell 103. The thermostatic valve 104 ismounted inside the faucet shell 103 and the handle 101 is connected withthe drive lever of the thermostatic valve 104 so that the faucet'sswitching on/off can be controlled when the handle swings upwards anddownwards or rotates to drive the drive lever to move. After flowinginto the faucet shell 103 through the cold water incoming pipe 105, thecold water flows into the thermostatic valve through the hot waterincoming channel of the valve core body. After flowing into the faucetshell body 103 through the hot water incoming pipe 106, the hot waterflows into the thermostatic valve through the cold water incomingchannel of the valve core body. The mixed water regulated by thethermostatic vale 104 flows out of the mixed water outgoing pipe 107through the mixed water outlet of the valve core body.

The water channel can be opened and shut off when the drive lever drivesthe dynamic ceramic chip to move. When the drive lever drives the driveplate to rotate, the temperature regulating valve stem moves upwards ordownwards further to drive the regulator move upwards or downwardsaccordingly so that the opening degrees of both the cold water inlet andhot water inlet of the valve core are changed, the ratio of the coldincoming water to the hot incoming water is changed and the temperatureof the mixed water is changed to perform the function of temperatureregulation.

In this embodiment, the structure of the cold water incoming pipe 105 isidentical to that of the hot water incoming pipe 106. Taking the hotwater incoming pipe for example, its structure is described as follows:

A control cavity 106 a is formed inside the hot water incoming pipe 106,and the front end of the hot water incoming pipe 106 comprises aconnection portion 106 b of the water incoming pipe. For the sake ofclarity, the end for the incoming water of the hot water incoming pipe106 (control cavity) is defined as the water incoming end and anotherend opposite to the water incoming end, that is, the end for theoutgoing water of the hot water incoming pipe 106 (control cavity) isdefined as the water outgoing end. A piston part 108, a guiding part109, a sealing pad support 110, a displacement elastomer 111 and asealing pad 112 are provided inside the control cavity 106 a of the hotwater incoming pipe 106. The guiding part 109 is a hollow pipe bodywhich is fixed inside the control cavity 106 a and located at the waterincoming end of the hot water incoming pipe 106 and is connected withthe water inlet of the hot water incoming pipe 106 (control cavity). Apiston part 108 is provided between the internal wall of the wateroutgoing end inside the hot water incoming pipe 106 and the guiding part109. The piston part 108 is a hollow body also.

With reference to FIG. 20, the piston part 108 includes a water drawingportion 108-1, an elastomer action portion 108-2 and a contact portion108-3. A seal ring is provided for sealing between the outer edge of theelastomer action portion 108-2 and the internal wall of the controlcavity 106 a to divide the internal part of hot water incoming pipe 106into a water incoming zone and a water outgoing zone. The water drawingportion 108-1 extends into the internal cavity of the guiding part 109,a seal ring is provided for sealing between the outer edge of the waterdrawing portion 108-1 and the internal wall of guiding part 109, and theinternal cavity of the piston part 108 is connected with the internalcavity of the guiding part 109. The contact portion 108-3 is against theinternal wall of the water outgoing end of the hot water incoming pipe106 (control cavity) or against the contact portion provided on theinternal wall. A displacement elastomer 111 is provided between theelastomer action portion 108-2 of the piston part 108 and the guidingpart 109. One end of the displacement elastomer 111 is against theelastomer action portion 108-2 and another end is against the guidingpart 109 or against the internal wall of the control cavity 106 a.

In this embodiment, the sealing pad support 110 is provided inside theguiding part 109. As a installation portion for the sealing pad, thesealing pad support 110 in this embodiment is fixed to the connectingportion 106 b of the water incoming pipe. The sealing pad support 110consists of a water discharge portion 110-1 and a supporting portion110-2 disposed on the water discharge portion 110-1. Water dischargehole 110-1 a drilled on the upper peripheral wall of the water dischargeportion 110-1 whose position can be adjusted according to theinstallation position of the sealing pad support. The water dischargeportion 110-1 is connected with the water inlet of the hot waterincoming pipe 106. After flowing into the hot water incoming pipe 106,the hot water flows into the water discharge portion 110-1 and flowsfrom the water discharge hole 110-la into the internal cavity of theguiding part 109. The supporting portion 110-2 is integrally connectedwith the top of the water discharge portion 110-1, and the sealing pad112 is provided on the end face of the supporting portion 110-2 by thetop cap 113 and located at the water incoming side of the waterdischarge portion. The sealing pad 112 can change (open or shut off) thewater route between the guiding part and the piston part.

After flowing into the internal cavity of the guiding part 109 throughthe water discharge hole 110-1 a of the water discharge portion 110-1,the hot water flows into the internal cavity of the piston part 108through the water drawing portion 108-1 of the piston part 108, thenflows into the water outgoing zone of the hot water incoming pipe andflows finally into the thermostatic valve from the water outgoing end ofthe hot water incoming pipe 106 through the hot water inlet 0.(Similarly, the cold water can flow into the thermostatic valve from thewater outgoing end of the cold water incoming pipe 105 through the coldwater inlet 0′). The water pressure acting on the water outgoing end(that is, the water incoming end of the thermostatic valve) canpressurize on the contact portion 108-3 of the piston part 108 and thedisplacement elastomer 111 can also act on the elastomer action portion108-3 of the piston part 108. By the action of the water pressure andelastic force, the piston part 108 can move axially inside the controlcavity 106 a so as to change the distance (water route) between thewater incoming end of the water drawing portion 108-1 of the piston part108 and the sealing pad 112. The flow of incoming water becomes lesswhen the drawing portion 108-1 is near the sealing pad 112, and the flowof incoming water becomes more when the water drawing portion 108-1 isfar from the sealing pad 112. When the water incoming pressure of thewater incoming end of the thermostatic valve increases, the wateroutgoing pressure of the water outgoing end of the hot water incomingpipe 106 become larger accordingly, the water pressure acts on thecontact portion 108-3 of the piston part 108 to move the piston part 108axially downwards. The cross-sectional area of the water route becomessmaller between the water incoming end of the water-drawing portion108-1 of the piston part 108 and the sealing pad 112, the waterresistance becomes larger and the flow of incoming water becomes lessconsequently so as to decrease the water outgoing pressure of the wateroutgoing end, and further, to limit the water incoming pressure into thethermostatic valve and to enhance the high pressure-resistantperformance of the faucet to enhance the constant temperature/pressureperformance of the faucet.

The Fourth Embodiment

As shown in FIG. 21, the difference between this embodiment and thethird embodiment is: No support for the sealing pad is provided in thisembodiment. The guiding part 109 is fixed inside the hot water incomingpipe and is connected with the water inlet of the hot water incomingpipe 106. The upper end of the guiding part 109 extends into the waterdrawing portion 108-1 of the piston part 108, and a sealing ring isprovided between the outer edge of the upper end of the guiding part 109and the internal wall of the water drawing portion 108-1. The internalcavity of the piston part 108 is connected with that of the guiding part109. A sealing ring is provided between the outer edge of the elastomeraction portion 108-2 and the internal wall of the control cavity 106 a,and the contact portion 108-3 is against the internal wall of the wateroutgoing end of the hot water incoming pipe 106. A displacementelastomer 111 is provided between the elastomer action portion 108-2 ofthe piston part 108 and the guiding part 109, and one end of thedisplacement elastomer 111 is against the elastomer action portion 108-2and other end is against the flange at bottom of the guiding part 109. Asealing pad installation portion 108-4 is provided inside the contactportion 108-3, and the sealing pad installation portion is integrallyconnected with the contact portion. The sealing pad 112 is provided onthe bottom surface of the sealing pad installation portion 108-4 and islocated at the water outgoing side of the guiding part. When the pistonpart 108 moves axially, the distance between the water outgoing end ofthe guiding part 109 and the sealing pad 112 will change, so as tochange the incoming water flow and regulate the water incoming pressureinto the valve core.

The Fifth Embodiment

As is shown in FIG. 22, the difference between this embodiment and thethird embodiment is: The water incoming direction of the cold/hot waterinlet of the faucet in the third embodiment is parallel with thedirection of the mixed water outlet, and the water incoming direction ofthe cold/hot water inlet is perpendicular to the direction of the mixedwater outlet in this embodiment.

The Sixth Embodiment

With reference to FIG. 23, the single-handle dual-control thermostaticfaucet in this embodiment comprises a handle 101, a gland nut 102, afaucet shell 103, a thermostatic valve 104, a cold water incoming pipe105, a hot water incoming pipe 106 and a mixed water outgoing pipe 107.The difference between this embodiment and the third embodiment is: Thestructure of the thermostatic valve 104 in this embodiment is identicalto that of the thermostatic valve in the Application for a PatentPublication in China with Publication No. CN 103912693A proposed by theApplicant on Feb. 28, 2014, and the thermostatic valve 104 comprises adriving lever 104-1, a drive plate 104-2, a dynamic ceramic chip 104-3,a static ceramic chip 104-4, a temperature regulating valve stem seat104-5, a temperature regulating valve stem 104-6, a thermo-sensitiveelement 104-7, a regulator 104-8, a valve core body 104-9, a valvejacket 104-11, a seat 104-12 and a driving lever seat 104-13. The valvecore body 104-9 in this embodiment includes a valve core body 104-9 aand valve core jacket 104-9 b which hermetically-fits with the valvecore body 104-9 a through a seal ring. The valve jacket 104-11 isconnected with the top of the valve core body 104-9, the seat 104-12 isprovided in the bottom of the valve core body 104-9. The seat 104-12 andthe valve core body 104-9 form a space for accommodating the temperatureregulating part and a water mixing zone. The dynamic ceramic chip 104-3and the static ceramic chip 104-4 are provided inside the valve jacket104-11, the latter is provided above the valve core body 104-9, theformer is provided on the static ceramic chip 104-4. A hot water inletpassage, a hot water outlet passage a cold water inlet passage and acold water outlet passage are provided separately on the static ceramicchip, and a hot water cavity and a cold water cavity are provided on thedynamic ceramic chip respectively. The hot water inlet passage, a hotwater outlet passage a cold water inlet passage and a cold water outletpassage can be connected or shut off when the dynamic ceramic chiprotates.

The handle 101 is connected with the driving lever 104-1 which isconnected with the drive plate 104-2 through a pin roll. The drivinglever 104-1 drives the dynamic ceramic chip 104-3 move though the driveplate 104-2. Along with upward and downward swing of the handle 101, thedriving lever 104-1 is driven to move, and further, to drive the dynamicceramic chip 104-3 move for open and shut-off of the water channel. Theupper end of the thermo-sensitive element 104-7 is against the end ofthe temperature regulating valve stem 104-6 and its lower end isindirectly against the regulator 104-8 by a spring. The thermo-sensitiveelement is connected with the regulator, when the thermo-sensitiveelement is moving, the regulator can be driven to move synchronously.With the change in the mixed water temperature in the water mixing zone,the push rod of the thermo-sensitive element 104-7 can extend andcontract accordingly so as to drive the regulator 104-8 to move upwardsand downwards to further regulate the cold/hot water flow to obtain abalanced ratio of the cold/hot incoming water and to keep a stabletemperature of the mixed water. The upper external wall of thetemperature regulating valve stem 104-6 is connected through teeth withthe drive plate 104-2, and the lower part thread-fits with thetemperature regulating valve stem seat 104-5. When the handle 101rotates, the drive lever 104-1 is driven to rotate so as to drive thedrive plate 104-2 to rotate, the temperature regulating valve stem 104-6moves upwards and downwards and further to drive the regulator 104-8 tomove upwards and downwards so that the opening degree of both the coldwater inlet and hot water inlet of the valve core changes, the ratio ofthe cold incoming water to the hot incoming water changes and thetemperature of the mixed water changes for proper function oftemperature regulation.

The supporting portion of the regulator in this embodiment is indirectlyagainst the seat, a seal ring is provided on both the upper end face andlower end face respectively of the water control portion of theregulator. When the regulator moves upwards to the upper end face of itswater control portion to contact with the internal wall of the valvecore body, the seal ring will close the gap between the both; when theregulator downwards to the lower end face of its water control portionto contact with the upper end face of the seat, the seal ring will closethe gap between the both.

In this Specification, each section is described in a progressive way,the difference with other sections is emphasized in each section; forthose similar or identical parts, each section can be referred to oneanother. The combinational relationship among those components/parts isnot limited only to the pattern known from the embodiments, and thoseskilled in the arts can materialize or use the present inventionaccording to the above description of the embodiments known to thepublic. It will be obvious for those skilled in the art to modify thoseembodiments for many times. The general principles defined in thisSpecification can be materialized in other embodiments without departingfrom the spirits or scope of the present invention. The presentinvention, therefore, will not be limited to the embodiments shown inthis Specification and will extend to the widest range conforming to theprinciples and the novelty in this Specification known to the public.

What is claimed is:
 1. A single-handle dual-control thermostatic valvecomprises a valve core body, a valve jacket hermetically-connected withthe upper part of the valve core body; and a valve seat located at thebottom of the valve core body, wherein the valve core body and the valveseat forms a space for accommodating a temperature regulating part and awater mixing zone; a flow part and a control part is provided in thevalve jacket, while the upper end of the driving lever of the controlpart extends upwards out of the valve jacket; characterized in that: ahot water incoming channel, a cold water incoming channel, a hot wateroutgoing channel and a cold water outgoing channel are providedseparately in the valve core body, and the hot water incoming channeland the cold water incoming channel penetrates through the valve corebody; the valve core body has a hot water inlet which connects with thehot water outgoing channel and the water mixing zone and a cold waterinlet which connects with the cold water outgoing channel and the watermixing zone, and the hot water inlet and the cold water inlet arelocated at the positions with different heights in the valve core body;a static ceramic chip having a hot water inlet passage, a hot wateroutlet passage, a cold water inlet passage and a cold water outletpassage is provided above the valve core body in the valve jacket, adynamic ceramic chip having a hot water controlling channel and a coldwater controlling channel is provided on the static ceramic chip, thedynamic ceramic chip is connected with the control part and can rotateand translate by the control part, wherein the hot water inlet passage,the hot water outlet passage, the cold water inlet passage and the coldwater outlet passage are connected correspondingly with the hot waterincoming channel, the hot water outgoing channel, the cold waterincoming channel and the cold water outgoing channel of the valve corebody respectively, the hot water controlling channel can open or shutoff both the hot water inlet passage and the hot water outlet passage onthe static ceramic chip, and the cold water controlling channel can openor shut off both the cold water inlet passage and the cold water outletpassage on the static ceramic chip; a mixed water outlet is located onthe valve seat and connected with the water mixing zone.
 2. Asingle-handle dual-control thermostatic valve according to claim 1,characterized in that: the temperature regulating part comprises atemperature regulating valve stem, a temperature regulating valve stemseat, a thermo-sensitive element, a regulator and a return spring,wherein a hole for the temperature regulating valve stem is provided atthe top of the valve core body and the temperature regulating valve stemseat is fixed to the internal wall of the temperature regulating valvestem hole, the temperature regulating valve stem thread-fits with thetemperature regulating valve stem seat and its upper end extendsupwards; the regulator including a water control portion and asupporting portion is provided between the temperature regulating stemseat and the valve seat, and the external peripheral wall of the watercontrol portion is against the internal wall of the valve core body andthe supporting portion is against the bottom of thetemperature-regulating valve stem seat, the upper end and lower end ofthe water control portion are located at the hot water inlet and thecold water inlet of the valve core body respectively; a cold/hotisolation seal ring between the hot water inlet and the cold water inletis provided on the external peripheral wall of the water controlportion, the upper end of the thermo-sensitive element is indirectlyagainst the valve stem by a locking spring and its lower end isindirectly against the valve seat by a return spring, the lower end andupper end of the return spring is against the valve seat and theregulator respectively.
 3. A single-handle dual-control thermostaticvalve according to claim 1, characterized in that: the control partcomprises a driving lever, a driving lever seat, a drive plate and thedrive plate's driver, the driving lever seat and the drive plate areaccommodated on the upper part of the internal cavity in the valvejacket, and the drive plate is located below the driving lever seat andconnected with the dynamic ceramic chip, the outer teeth at the upperend of the temperature regulating valve stem fits with the inner teethin the center hole of the driving lever seat, the lower part of thedriving lever penetrates through the driving lever seat and is connectedwith the lever seat by a dowel, the lower end of the driving lever isembedded into and fixed to the driving lever driver on the drive plate.4. A single-handle dual-control thermostatic valve according to claim 1,characterized in that: the hot water inlet passage of the static ceramicchip is located outside of the hot water outlet passage and is longerthan the latter; the cold water inlet passage is located outside of thecold water outlet passage and is longer than the latter.
 5. Asingle-handle dual-control thermostatic valve according to claim 1 or 4,characterized in that: the water incoming end face of the hot waterincoming channel and that of the cold water incoming channel are locatedon the bottom surface of the valve core body and are arc-shaped, thewater outgoing end face of the hot water incoming channel, that of thecold water incoming channel, the water incoming end face of the hotwater outgoing channel and that of the cold water outgoing channel arelocated on the top surface of the valve core body and are sector-shaped;and the water outgoing end face of the hot water incoming channel, thatof the cold water incoming channel, the water incoming end face of thehot water outgoing channel and that of the cold water outgoing channelare identical in shape and size and evenly distributed along thecircumference with a certain interval.
 6. A single-handle dual-controlthermostatic valve according to claim 5, characterized in that: thewater outgoing end face of the hot water incoming channel deflects10-30° relatively to axis X.
 7. A single-handle dual-controlthermostatic valve according to claim 6, characterized in that: theincluded angle between the edge of the hot water outgoing channel andthe axis X is 5-15° and that between the edge of the cold water outgoingchannel and the axis X is 40-50°.
 8. A single-handle dual-controlthermostatic valve according to claim 2, characterized in that: thethermo-sensitive element is connected with the regulator to drive thelatter move, a seal ring is provided between the upper end face of thewater control portion of the regulator and the internal wall of thevalve core body and between the lower end face of the water controlportion and the upper end face of the valve seat, when the upper endface of the water control portion contacts with the internal wall of thevalve core body, the seal ring closes the gap between the upper end faceof the water control portion and the internal wall of the valve corebody; when the lower end face of the water control portion contacts withthe upper end face of the valve seat, the seal ring closes the gapbetween the lower end face of the water control portion and the upperend face of the valve seat.
 9. A single-handle dual-control thermostaticvalve according to claim 8, characterized in that: the seal ring isdisposed on the upper end face and the lower end face of the watercontrol portion.
 10. A single-handle dual-control thermostatic faucetprovided with a single-handle dual-control thermostatic valve accordingto any article of claim 1 through to claim 9, characterized in that: thesingle-handle dual-control thermostatic faucet comprises a faucet shell,a thermostatic valve provided in the faucet shell, a handle whichcontrols the thermostatic valve, a cold water incoming pipe, a hot waterincoming pipe and a mixed water outgoing pipe which are connected withthe faucet shell, the handle is connected with the driving lever of thethermostatic valve.
 11. A single-handle dual-control thermostatic faucetaccording to claim 10, characterized in that: the cold water incomingpipe and the hot water incoming pipe form an internal control cavityrespectively, inside the control cavity, the following are provided: ahollow guiding part which is connected with the water inlet of thecontrol cavity; a piston part provided between the guiding part and thewater outgoing end of the control cavity; the internal cavity of thepiston part is connected with the internal cavity of the guiding part,and the piston part has a water drawing portion, an elastomer actionportion and a contact portion which are connected with one anothersuccessively can move axially inside the control cavity, wherein thewater drawing portion is embedded into and connected with the guidingpart, the contact portion is against the water outlet of the controlcavity and a seal ring is provided between the outer edge of theelastomer action portion and the internal wall of the control cavity; adisplacement elastomer provided between the elastomer action portion andthe guiding part; a sealing pad provided on its installing portion canchange the water route between the guiding part and the piston part. 12.A single-handle dual-control thermostatic faucet according to claim 11,characterized in that: the sealing pad installing portion is a supportfor the sealing pad provided in the connecting portion of the waterincoming pipe, and the sealing pad support comprises a water dischargeportion having water discharge holes on its peripheral wall connectedwith the water inlet of the control cavity and a supporting portionprovided on the water discharge portion, and the sealing pad is providedon the end face of the supporting portion; and the water drawing portionextends into the internal cavity of the guiding part, and the sealingpad is located at the water incoming side of the water drawing portion.13. A single-handle dual-control thermostatic faucet according to claim11, characterized in that: the upper end of the guiding part extendsinto the water drawing portion of the piston part, the installingportion for the sealing pad is provided inside the contact portion, andthe sealing pad is provided on the bottom surface of the installingportion of the sealing pad and is located at the water outgoing side ofthe guiding part.